This RS-232 PCI board from Quatech is the best solution for attaching 2 RS-232 devices through a single-interrupt PCI card. Designed to play well with your PCI bus, this card is designed to reduce PCI register conflicts. 2 male DB-9 connections are provided.

Conserve your precious PCI slots with LAVA's SP-PCI card featuring both a serial and a parallel port on one board. Easy to install and configure, the SP-PCI connects your favorite serial and parallel peripherals.